Meaning of round lot

round' lot'

Pronunciation: [key]
— Stock Exchange. Stock Exchange.
  1. the conventional unit or quantity in which commodities or securities are bought and sold.
  2. (in a transaction) a quantity of 100 shares of a stock that is active or 10 shares of a stock that is inactive. Cf.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.